1.1 --- a/README.txt	Tue Sep 27 00:36:33 2016 +0200
     1.2 +++ b/README.txt	Wed Sep 28 22:42:41 2016 +0200
     1.3 @@ -202,6 +202,20 @@
     1.4  Pin 31 for the Am29F010 would need to be asserted. Thus pin 30 might also be
     1.5  routed to pin 31, so that the device would remain read-only at all times.
     1.6  
     1.7 +Pins
     1.8 +----
     1.9 +
    1.10 +A0-A16      17-bit addressing
    1.11 +DQ0-DQ7     8-bit data transfer
    1.12 +CE#         chip enable
    1.13 +OE#         output enable
    1.14 +WE#         write enable
    1.15 +VCC         5V
    1.16 +VSS         ground
    1.17 +NC          (not connected)
    1.18 +
    1.19 +
    1.20 +
    1.21  Dual ROM Adapter Usage
    1.22  ======================
    1.23  
    1.24 @@ -280,6 +294,17 @@
    1.25  pairs of sectors can be manually selected. A mechanism could also be devised
    1.26  to allow selection using logic, but this is not explored here.
    1.27  
    1.28 +74HC08 Pinout
    1.29 +-------------
    1.30 +
    1.31 +1A  1  \/  14 VCC
    1.32 +1B  2      13 4B
    1.33 +1Y  3      12 4A
    1.34 +2A  4      11 4Y
    1.35 +2B  5      10 3B
    1.36 +2Y  6       9 3A
    1.37 +GND 7       8 3Y
    1.38 +
    1.39  
    1.40  
    1.41  Arduino Interfacing
    1.42 @@ -303,20 +328,6 @@
    1.43  from the latch-based mechanism. As a result, only 14 pins are needed on the
    1.44  Arduino.
    1.45  
    1.46 -74HC273 Pinout
    1.47 ---------------
    1.48 -
    1.49 -MR#  1  \/  20 VCC
    1.50 -Q0   2      19 Q7
    1.51 -D0   3      18 D7
    1.52 -D1   4      17 D6
    1.53 -Q1   5      16 Q6
    1.54 -Q2   6      15 Q5
    1.55 -D2   7      14 D5
    1.56 -D3   8      13 D4
    1.57 -Q3   9      12 Q4
    1.58 -GND 10      11 CP
    1.59 -
    1.60  Arduino     74HC273 #1  74HC273 #2  Am29F010
    1.61  -------     ----------  ----------  --------
    1.62  A5                                  CE#
    1.63 @@ -353,6 +364,20 @@
    1.64  5V          VCC         VCC         VCC
    1.65  GND         GND         GND         VSS
    1.66  
    1.67 +74HC273 Pinout
    1.68 +--------------
    1.69 +
    1.70 +MR#  1  \/  20 VCC
    1.71 +Q0   2      19 Q7
    1.72 +D0   3      18 D7
    1.73 +D1   4      17 D6
    1.74 +Q1   5      16 Q6
    1.75 +Q2   6      15 Q5
    1.76 +D2   7      14 D5
    1.77 +D3   8      13 D4
    1.78 +Q3   9      12 Q4
    1.79 +GND 10      11 CP
    1.80 +
    1.81  Set Address
    1.82  -----------
    1.83  
    1.84 @@ -392,18 +417,6 @@
    1.85  from the shift-register-based mechanism. As a result, only 15 pins are needed
    1.86  on the Arduino.
    1.87  
    1.88 -74HC595 Pinout
    1.89 ---------------
    1.90 -
    1.91 -QB  1  \/  16 VCC
    1.92 -QC  2      15 QA
    1.93 -QD  3      14 SI
    1.94 -QE  4      13 G#
    1.95 -QF  5      12 RCK
    1.96 -QG  6      11 SCK
    1.97 -QH  7      10 SCLR#
    1.98 -GND 8       9 QH'
    1.99 -
   1.100  Arduino     74HC595#1       74HC595#2       Am29F010
   1.101  -------     ---------       ---------       --------
   1.102  A5                                          CE#
   1.103 @@ -442,17 +455,17 @@
   1.104  GND         G#              G#
   1.105  GND         GND             GND             VSS
   1.106  
   1.107 -Pins
   1.108 -====
   1.109 +74HC595 Pinout
   1.110 +--------------
   1.111  
   1.112 -A0-A16      17-bit addressing
   1.113 -DQ0-DQ7     8-bit data transfer
   1.114 -CE#         chip enable
   1.115 -OE#         output enable
   1.116 -WE#         write enable
   1.117 -VCC         5V
   1.118 -VSS         ground
   1.119 -NC          (not connected)
   1.120 +QB  1  \/  16 VCC
   1.121 +QC  2      15 QA
   1.122 +QD  3      14 SI
   1.123 +QE  4      13 G#
   1.124 +QF  5      12 RCK
   1.125 +QG  6      11 SCK
   1.126 +QH  7      10 SCLR#
   1.127 +GND 8       9 QH'
   1.128  
   1.129  
   1.130